package com.wfm.ch1.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;


@Aspect //1
@Component //2
public class LogAspect {
	
	@Pointcut("@annotation(com.wfm.ch1.aop.Action)") //3
	public void annotationPointCut(){};

	@After("annotationPointCut()") //4
	public void after(JoinPoint joinPoint) {
		MethodSignature signature = (MethodSignature) joinPoint.getSignature();
		Method method = signature.getMethod();
		Action action = method.getAnnotation(Action.class);
		System.out.println("注解式拦截:" + action.name()); //5
	}

	@Before("execution(* com.wfm.ch1.aop.DemoMethodService.*(..))") //6
	public void before(JoinPoint joinPoint){
		MethodSignature signature = (MethodSignature) joinPoint.getSignature();
		Method method = signature.getMethod();
		System.out.println("方法规则式拦截:"+method.getName());

	}
	   
	  
	
}
